Files in the database:
"phenotypic_data.txt" --> field experimental data: 
"geno_data.txt" --> genomic information
"NMR_data.txt" --> metabolomic information obtained from green flag leaf 
"NIR_data.txt" --> Near-infrared spectroscopy information obtained from hole malted grain (i.e. wort)

The file "phenotypic_data.txt" contains the following columns:
id_line: identification for the lines. The id_line connect the phenotypic_data.txt and genomic_data.txt
id_ny: unique id assigned to each observation. The id_ny connect the phenotypic_data.txt and NMR_data.txt or NIR_data.txt
year: year of evaluation
loc: code for assessment location
Y: coordinate Y of field grid 
X: coordinate X of field grid 
mash: batch in which the samples were malted
grain.yield: Grain yield 
protein: Grain protein content
beta: β-glucan content  
extract: malt extract yield 
filtering: filtering speed 
viscosity: wort viscosity
wort_col: wort color 